ATS Resume Formatting Guide: What Works and What Gets Rejected

Getting past an Applicant Tracking System starts before you write a single bullet point — it starts with how you format the document. Even the best content will be invisible if the parser cannot read your file correctly. This guide covers the formatting decisions that matter most.

1. Font Choice Matters More Than You Think

Use standard system fonts such as Arial, Calibri, Helvetica, or Times New Roman. Avoid decorative or script fonts — they may look elegant but many older ATS engines cannot map non-standard font glyphs to readable text. Stick to a font size of 10 to 12 points for body text so the parser has no trouble extracting every character.

2. Margins and White Space

Set your page margins to at least 0.5 inches on all sides. Extremely narrow margins (under 0.3 inches) can cause text to be clipped or ignored during parsing. At the same time, do not waste precious space with oversized margins. A balance of 0.5 to 0.75 inches gives the parser enough room while maximizing content density.

3. File Naming Conventions

Believe it or not, your file name is the first piece of data the ATS reads. Use a clean, professional naming format like "John_Doe_Resume_2026.pdf". Avoid special characters, underscores only, no spaces where possible, and do not use nicknames or unprofessional terms.

4. Headers and Footers Are Risky

Many ATS parsers skip content placed inside the header or footer area of a document. If you place your name, phone number, or email in the header, the system may never record it. Instead, embed your contact information at the very top of the main body area, flush left under your name.